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Marvel has lined up an impressive list of possibilities for the lead role of Peter Quill in their upcoming superhero epic "Guardians of the Galaxy."

An intergalactic spin on "The Avengers," "Guardians" follows a team of alien superheroes who fight to protect the solar system from evil. Their leader, Peter Quill, is half-human and half-alien, and landing the role would be a major score for any actor.

The Guardians have actually been known to work with Iron Man, Hulk and the rest, so the "Guardians" film is envisioned as another expansion of the The Avengers universe (as is Joss Whedon's still-in-the-works ABC pilot "S.H.I.E.L.D.").